Mastering Kali Linux for Advanced Penetration Testing by 
A Practical Guide to Linux Commands, Editors, and Shell Programming by 
Ubuntu by 
Ubuntu Made Easy by 
CentOS 6 Linux Server Cookbook by A Linux distribution (often called distro for short) is an operating system built on top of the Linux kernel...a distribution usually includes a very large collection of free and open-source software. There are currently over six hundred Linux distributions.
Each distro provides standard linux tools. Explore our links to popular distros and library resources covering their installation and operation.
The following sites provide comprehensive lists of distributions, including many non-English distributions: lwn.net/Distributions, or distrowatch.com.
Links to the most popular Linux server oriented distributions.
